This study demonstrates the applicability of pressurized stirred tank bioreactors for oxygen transfer enhancement in aerobic cultivation processes. The specific power input and the reactor pressure was employed as process variable. As model organism Escherichia coli, Arxula adeninivorans, Saccharomyces cerevisiae and Corynebacterium glutamicum were cultivated to high cell densities. By applying...

L. Atanasova, D. L. Balabanski, M. Hass, R. Lozeva, G. Neyens, G. Simpson and N. Vermeulen for the g-RISING Collaboration University of Sofia, BG-1164 Sofia, Bulgaria; 2 INRNE, BAS, BG-1784 Sofia, Bulgaria; Universitá di Camerino, 62032 Camerino, Italy; Weizmann Institute of Science, Rehovot 76100, Israel; 5 IKS, K.U. Leuven, 3001 Leuven, Belgium; LPSC, 38026 Grenoble Cedex, France; Institut La...

cquisition channels are important predictors of customer loyalty in the first stages of a business–consumer relationship. Although some researchers have provided examples of the differences in the value of the customers businesses acquire via different channels, they have not considered the impact of acquisition channels on loyalty and cross-buying. Using probitmodels we explored how retention ...

The goal of the present study was to explore how parental BIS/BAS relates to parenting styles, and to investigate if subjective well-being (SWB) moderates these associations. Mothers (n = 95) were asked to complete measures of personality, parenting styles, and life satisfaction (SWB). Results revealed that mothers who reported high BAS were significantly more likely to report being nurturing a...

A solar heating system is designed to reduce energy consumption in a poultry farm. According the physics and conditions of indoor environment building effect weather conditions, amount 1.37 × 108 kJ/h during year required for heating. Then, by using double-glazed windows insulation exterior walls architecture section, drastically reduced, annual gas equal 11,833 m3. The surface collector recomm...

This paper aims to report a detailed study of Parabolic Trough Collector (PTC) prototype’s thermal system that requires sizing and dimensioning investigation its main parts. PTC possesses field-type evacuated tube solar collector with U-shaped. Furthermore, simulation developed TRNSYS is carried out evaluate the validity feasibility this system, in particular, for low-temperature range. The ori...

In this paper, analytic solutions of two-dimensional coupled Burgers' equations are obtained by the Homotopy analysis and the Homotopy Pad$acute{e}$ methods. The obtained approximation by using Homotopy method contains an auxiliary parameter which is a simple way to control and adjust the convergence region and rate of solution series. The approximation solutions by $[m,m]$ Homotopy Pad$acute{e...

Power transformer rupture and fire resulting from an arcing fault inside the tank usually leads to significant security risks and serious economic loss. In order to reveal the essence of tank deformation or explosion, this paper presents a 3-D numerical computational tool to simulate the structural dynamic behavior due to overpressure inside transformer tank. To illustrate the effectiveness of ...

Demand for faster data rates in wireline and wireless markets has resulted in tighter jitter and phase noise requirements for oscillators. Although active device noise (and not the resonator noise) dominates the phase noise of most CMOS oscillators [1], in a properly designed oscillator, the quality factor, Q, of the resonant tank indirectly plays a central role in the phase noise. The best pha...